CMA121 3DDE300401 | DC Power Supply Module | ABB

Product Description

Configured for DC power conversion and regulated output distribution in the ABB Synpol D system, the ABB CMA121 3DDE300401 (CMA121 DC Power Supply Module) provides direct electrical power conditioning for connected control hardware.

Hardware Specifications

Industrial Control Power Conversion and Backplane Integration

The ABB CMA121 3DDE300401 module performs regulated DC voltage conversion for Synpol D control assemblies. It accepts a 24 VDC input supply and provides a controlled 5 VDC output for connected electronic circuits.

In addition, the module maintains output stability through voltage regulation and input-to-output isolation. The 500 VDC isolation rating separates the supply input path from the output circuit, which supports electrical separation inside industrial control cabinets.

ABB control hardware typically uses structured internal power distribution and module-based architectures. Therefore, the CMA121 supports stable DC power delivery within the Synpol D hardware environment while maintaining compatibility with ABB system power requirements.

Frequently Asked Questions

Q: What input voltage range does the ABB CMA121 3DDE300401 support?
A: The module accepts a 24 VDC nominal input and operates within an 18 VDC to 32 VDC input voltage range.

Q: What output parameters does the CMA121 DC Power Supply Module provide?
A: The module provides a 5 VDC output with +/-1% regulation and a maximum output current of 4 A.

Q: Does the CMA121 support isolation between input and output circuits?
A: Yes. The module provides 500 VDC input-to-output isolation for electrical separation between supply sections.

Field Installation Guidelines

• Install the CMA121 module inside a suitable ABB Synpol D control cabinet environment with proper mechanical fixation.
• Verify the 24 VDC supply polarity before connecting field power wiring.
• Use appropriate wire routing methods to separate DC power lines from high-noise switching circuits.
• Connect protective grounding according to the cabinet grounding design and local electrical standards.
• Check terminal connections for correct tightening before system power application.
• Confirm the output voltage level before connecting downstream control electronics.
• Maintain adequate airflow around the module to support operation within the specified temperature range.

Other Attributes

• Series: Advant DCS/800xA
• Country of Origin:  Germany/Sweden/Finland
• Lead Time: In Stock, 2 Working Days

In Stock Hot Items of ABB

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TEL: +86 18030205725     E-MAIL: manskiwong@cambia.cn

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